Home / 287,622.02-431,433.03-87,942.41

Finding the Fourth Proportional to 287,622.02, 431,433.03 and 87,942.41

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Solution

The fourth proportional to 287,622.02, 431,433.03 and 87,942.41 is: 131,913.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,622.02 : 431,433.03 = 87,942.41 : x
  2. Step 2: Convert to fraction form
    287,622.02/431,433.03 = 87,942.41/x
  3. Step 3: Cross multiply
    287,622.02x = 431,433.03 × 87,942.41
  4. Step 4: Simplify right side
    287,622.02x = 37,941,260,411.80
  5. Step 5: Solve for x
    x = 37,941,260,411.80/287,622.02
  6. Step 6: Final answer
    x = 131,913.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.